CELESTIA Satellite Test & Simulation

Celestia Satellite Test and Simulation B.V. (Celestia STS) is a Dutch company founded in 1985 and headquartered in Leiden, The Netherlands, specialising in Electrical Ground Support Equipment (EGSE), TT&C solutions, and optical modems for the space industry. The company is a centre of excellence for satellite testing and simulation, offering the Multi-Purpose Interface Platform (MPIP), optical modems at up to 10 Gbps, WizardLink front-end systems, on-board interface equipment, RF interface systems, TT&C modems, and comprehensive satellite ground station solutions. Celestia STS serves European space agencies, satellite manufacturers, and commercial operators worldwide with satellite integration, test, and mission operations support.